arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <linux/mtd/mtd.h>
  28 #include <linux/mtd/partitions.h>
  29 #include <linux/mtd/nand.h>
  30 #include <linux/mmc/host.h>
  31
  32 #include <linux/regulator/machine.h>
  33 #include <linux/i2c/twl.h>
  34
  35 #include <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/flash.h>
  40
  41 #include <plat/board.h>
  42 #include <plat/common.h>
  43 #include <plat/display.h>
  44 #include <plat/panel-generic-dpi.h>
  45 #include <plat/gpmc.h>
  46 #include <plat/nand.h>
  47 #include <plat/usb.h>
  48
  49 #include "mux.h"
  50 #include "hsmmc.h"
  51 #include "timer-gp.h"
  52
  53 #define NAND_BLOCK_SIZE         SZ_128K
  54
  55 /*
  56  * OMAP3 Beagle revision
  57  * Run time detection of Beagle revision is done by reading GPIO.
  58  * GPIO ID -
  59  *      AXBX    = GPIO173, GPIO172, GPIO171: 1 1 1
  60  *      C1_3    = GPIO173, GPIO172, GPIO171: 1 1 0
  61  *      C4      = GPIO173, GPIO172, GPIO171: 1 0 1
  62  *      XM      = GPIO173, GPIO172, GPIO171: 0 0 0
  63  */
  64 enum {
  65         OMAP3BEAGLE_BOARD_UNKN = 0,
  66         OMAP3BEAGLE_BOARD_AXBX,
  67         OMAP3BEAGLE_BOARD_C1_3,
  68         OMAP3BEAGLE_BOARD_C4,
  69         OMAP3BEAGLE_BOARD_XM,
  70 };
  71
  72 static u8 omap3_beagle_version;
  73
  74 static u8 omap3_beagle_get_rev(void)
  75 {
  76         return omap3_beagle_version;
  77 }
  78
  79 static void __init omap3_beagle_init_rev(void)
  80 {
  81         int ret;
  82         u16 beagle_rev = 0;
  83
  84         omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
  85         omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
  86         omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
  87
  88         ret = gpio_request(171, "rev_id_0");
  89         if (ret < 0)
  90                 goto fail0;
  91
  92         ret = gpio_request(172, "rev_id_1");
  93         if (ret < 0)
  94                 goto fail1;
  95
  96         ret = gpio_request(173, "rev_id_2");
  97         if (ret < 0)
  98                 goto fail2;
  99
 100         gpio_direction_input(171);
 101         gpio_direction_input(172);
 102         gpio_direction_input(173);
 103
 104         beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
 105                         | (gpio_get_value(173) << 2);
 106
 107         switch (beagle_rev) {
 108         case 7:
 109                 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
 110                 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
 111                 break;
 112         case 6:
 113                 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
 114                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
 115                 break;
 116         case 5:
 117                 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
 118                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
 119                 break;
 120         case 0:
 121                 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
 122                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
 123                 break;
 124         default:
 125                 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
 126                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 127         }
 128
 129         return;
 130
 131 fail2:
 132         gpio_free(172);
 133 fail1:
 134         gpio_free(171);
 135 fail0:
 136         printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
 137         omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
 138
 139         return;
 140 }
 141
 142 static struct mtd_partition omap3beagle_nand_partitions[] = {
 143         /* All the partition sizes are listed in terms of NAND block size */
 144         {
 145                 .name           = "X-Loader",
 146                 .offset         = 0,
 147                 .size           = 4 * NAND_BLOCK_SIZE,
 148                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 149         },
 150         {
 151                 .name           = "U-Boot",
 152                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 153                 .size           = 15 * NAND_BLOCK_SIZE,
 154                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 155         },
 156         {
 157                 .name           = "U-Boot Env",
 158                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
 159                 .size           = 1 * NAND_BLOCK_SIZE,
 160         },
 161         {
 162                 .name           = "Kernel",
 163                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
 164                 .size           = 32 * NAND_BLOCK_SIZE,
 165         },
 166         {
 167                 .name           = "File System",
 168                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
 169                 .size           = MTDPART_SIZ_FULL,
 170         },
 171 };
 172
 173 static struct omap_nand_platform_data omap3beagle_nand_data = {
 174         .options        = NAND_BUSWIDTH_16,
 175         .parts          = omap3beagle_nand_partitions,
 176         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
 177         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
 178         .nand_setup     = NULL,
 179         .dev_ready      = NULL,
 180 };
 181
 182 /* DSS */
 183
 184 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
 185 {
 186         if (gpio_is_valid(dssdev->reset_gpio))
 187                 gpio_set_value(dssdev->reset_gpio, 1);
 188
 189         return 0;
 190 }
 191
 192 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
 193 {
 194         if (gpio_is_valid(dssdev->reset_gpio))
 195                 gpio_set_value(dssdev->reset_gpio, 0);
 196 }
 197
 198 static struct panel_generic_dpi_data dvi_panel = {
 199         .name = "generic",
 200         .platform_enable = beagle_enable_dvi,
 201         .platform_disable = beagle_disable_dvi,
 202 };
 203
 204 static struct omap_dss_device beagle_dvi_device = {
 205         .type = OMAP_DISPLAY_TYPE_DPI,
 206         .name = "dvi",
 207         .driver_name = "generic_dpi_panel",
 208         .data = &dvi_panel,
 209         .phy.dpi.data_lines = 24,
 210         .reset_gpio = -EINVAL,
 211 };
 212
 213 static struct omap_dss_device beagle_tv_device = {
 214         .name = "tv",
 215         .driver_name = "venc",
 216         .type = OMAP_DISPLAY_TYPE_VENC,
 217         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 218 };
 219
 220 static struct omap_dss_device *beagle_dss_devices[] = {
 221         &beagle_dvi_device,
 222         &beagle_tv_device,
 223 };
 224
 225 static struct omap_dss_board_info beagle_dss_data = {
 226         .num_devices = ARRAY_SIZE(beagle_dss_devices),
 227         .devices = beagle_dss_devices,
 228         .default_device = &beagle_dvi_device,
 229 };
 230
 231 static struct regulator_consumer_supply beagle_vdac_supply =
 232         REGULATOR_SUPPLY("vdda_dac", "omapdss");
 233
 234 static struct regulator_consumer_supply beagle_vdvi_supply =
 235         REGULATOR_SUPPLY("vdds_dsi", "omapdss");
 236
 237 static void __init beagle_display_init(void)
 238 {
 239         int r;
 240
 241         r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
 242         if (r < 0) {
 243                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 244                 return;
 245         }
 246
 247         gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
 248 }
 249
 250 #include "sdram-micron-mt46h32m32lf-6.h"
 251
 252 static struct omap2_hsmmc_info mmc[] = {
 253         {
 254                 .mmc            = 1,
 255                 .caps           = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
 256                 .gpio_wp        = 29,
 257         },
 258         {}      /* Terminator */
 259 };
 260
 261 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 262         .supply                 = "vmmc",
 263 };
 264
 265 static struct regulator_consumer_supply beagle_vsim_supply = {
 266         .supply                 = "vmmc_aux",
 267 };
 268
 269 static struct gpio_led gpio_leds[];
 270
 271 static int beagle_twl_gpio_setup(struct device *dev,
 272                 unsigned gpio, unsigned ngpio)
 273 {
 274         int r;
 275
 276         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 277                 mmc[0].gpio_wp = -EINVAL;
 278         } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
 279                 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
 280                 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 281                 mmc[0].gpio_wp = 23;
 282         } else {
 283                 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
 284         }
 285         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 286         mmc[0].gpio_cd = gpio + 0;
 287         omap2_hsmmc_init(mmc);
 288
 289         /* link regulators to MMC adapters */
 290         beagle_vmmc1_supply.dev = mmc[0].dev;
 291         beagle_vsim_supply.dev = mmc[0].dev;
 292
 293         /* REVISIT: need ehci-omap hooks for external VBUS
 294          * power switch and overcurrent detect
 295          */
 296         if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
 297                 r = gpio_request(gpio + 1, "EHCI_nOC");
 298                 if (!r) {
 299                         r = gpio_direction_input(gpio + 1);
 300                         if (r)
 301                                 gpio_free(gpio + 1);
 302                 }
 303                 if (r)
 304                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
 305         }
 306
 307         /*
 308          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
 309          * high / others active low)
 310          */
 311         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 312         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
 313                 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 314         else
 315                 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
 316
 317         /* DVI reset GPIO is different between beagle revisions */
 318         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
 319                 beagle_dvi_device.reset_gpio = 129;
 320         else
 321                 beagle_dvi_device.reset_gpio = 170;
 322
 323         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 324         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 325
 326         /*
 327          * gpio + 1 on Xm controls the TFP410's enable line (active low)
 328          * gpio + 2 control varies depending on the board rev as follows:
 329          * P7/P8 revisions(prototype): Camera EN
 330          * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
 331          */
 332         if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
 333                 r = gpio_request(gpio + 1, "nDVI_PWR_EN");
 334                 if (!r) {
 335                         r = gpio_direction_output(gpio + 1, 0);
 336                         if (r)
 337                                 gpio_free(gpio + 1);
 338                 }
 339                 if (r)
 340                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
 341                                 __func__);
 342                 r = gpio_request(gpio + 2, "DVI_LDO_EN");
 343                 if (!r) {
 344                         r = gpio_direction_output(gpio + 2, 1);
 345                         if (r)
 346                                 gpio_free(gpio + 2);
 347                 }
 348                 if (r)
 349                         pr_err("%s: unable to configure DVI_LDO_EN\n",
 350                                 __func__);
 351         }
 352
 353         return 0;
 354 }
 355
 356 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 357         .gpio_base      = OMAP_MAX_GPIO_LINES,
 358         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 359         .irq_end        = TWL4030_GPIO_IRQ_END,
 360         .use_leds       = true,
 361         .pullups        = BIT(1),
 362         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 363                                 | BIT(15) | BIT(16) | BIT(17),
 364         .setup          = beagle_twl_gpio_setup,
 365 };
 366
 367 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 368 static struct regulator_init_data beagle_vmmc1 = {
 369         .constraints = {
 370                 .min_uV                 = 1850000,
 371                 .max_uV                 = 3150000,
 372                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 373                                         | REGULATOR_MODE_STANDBY,
 374                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 375                                         | REGULATOR_CHANGE_MODE
 376                                         | REGULATOR_CHANGE_STATUS,
 377         },
 378         .num_consumer_supplies  = 1,
 379         .consumer_supplies      = &beagle_vmmc1_supply,
 380 };
 381
 382 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 383 static struct regulator_init_data beagle_vsim = {
 384         .constraints = {
 385                 .min_uV                 = 1800000,
 386                 .max_uV                 = 3000000,
 387                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 388                                         | REGULATOR_MODE_STANDBY,
 389                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 390                                         | REGULATOR_CHANGE_MODE
 391                                         | REGULATOR_CHANGE_STATUS,
 392         },
 393         .num_consumer_supplies  = 1,
 394         .consumer_supplies      = &beagle_vsim_supply,
 395 };
 396
 397 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 398 static struct regulator_init_data beagle_vdac = {
 399         .constraints = {
 400                 .min_uV                 = 1800000,
 401                 .max_uV                 = 1800000,
 402                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 403                                         | REGULATOR_MODE_STANDBY,
 404                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 405                                         | REGULATOR_CHANGE_STATUS,
 406         },
 407         .num_consumer_supplies  = 1,
 408         .consumer_supplies      = &beagle_vdac_supply,
 409 };
 410
 411 /* VPLL2 for digital video outputs */
 412 static struct regulator_init_data beagle_vpll2 = {
 413         .constraints = {
 414                 .name                   = "VDVI",
 415                 .min_uV                 = 1800000,
 416                 .max_uV                 = 1800000,
 417                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 418                                         | REGULATOR_MODE_STANDBY,
 419                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 420                                         | REGULATOR_CHANGE_STATUS,
 421         },
 422         .num_consumer_supplies  = 1,
 423         .consumer_supplies      = &beagle_vdvi_supply,
 424 };
 425
 426 static struct twl4030_usb_data beagle_usb_data = {
 427         .usb_mode       = T2_USB_MODE_ULPI,
 428 };
 429
 430 static struct twl4030_codec_audio_data beagle_audio_data;
 431
 432 static struct twl4030_codec_data beagle_codec_data = {
 433         .audio_mclk = 26000000,
 434         .audio = &beagle_audio_data,
 435 };
 436
 437 static struct twl4030_platform_data beagle_twldata = {
 438         .irq_base       = TWL4030_IRQ_BASE,
 439         .irq_end        = TWL4030_IRQ_END,
 440
 441         /* platform_data for children goes here */
 442         .usb            = &beagle_usb_data,
 443         .gpio           = &beagle_gpio_data,
 444         .codec          = &beagle_codec_data,
 445         .vmmc1          = &beagle_vmmc1,
 446         .vsim           = &beagle_vsim,
 447         .vdac           = &beagle_vdac,
 448         .vpll2          = &beagle_vpll2,
 449 };
 450
 451 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 452         {
 453                 I2C_BOARD_INFO("twl4030", 0x48),
 454                 .flags = I2C_CLIENT_WAKE,
 455                 .irq = INT_34XX_SYS_NIRQ,
 456                 .platform_data = &beagle_twldata,
 457         },
 458 };
 459
 460 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
 461        {
 462                I2C_BOARD_INFO("eeprom", 0x50),
 463        },
 464 };
 465
 466 static int __init omap3_beagle_i2c_init(void)
 467 {
 468         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 469                         ARRAY_SIZE(beagle_i2c_boardinfo));
 470         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 471          * projector don't work reliably with 400kHz */
 472         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
 473         return 0;
 474 }
 475
 476 static struct gpio_led gpio_leds[] = {
 477         {
 478                 .name                   = "beagleboard::usr0",
 479                 .default_trigger        = "heartbeat",
 480                 .gpio                   = 150,
 481         },
 482         {
 483                 .name                   = "beagleboard::usr1",
 484                 .default_trigger        = "mmc0",
 485                 .gpio                   = 149,
 486         },
 487         {
 488                 .name                   = "beagleboard::pmu_stat",
 489                 .gpio                   = -EINVAL,      /* gets replaced */
 490                 .active_low             = true,
 491         },
 492 };
 493
 494 static struct gpio_led_platform_data gpio_led_info = {
 495         .leds           = gpio_leds,
 496         .num_leds       = ARRAY_SIZE(gpio_leds),
 497 };
 498
 499 static struct platform_device leds_gpio = {
 500         .name   = "leds-gpio",
 501         .id     = -1,
 502         .dev    = {
 503                 .platform_data  = &gpio_led_info,
 504         },
 505 };
 506
 507 static struct gpio_keys_button gpio_buttons[] = {
 508         {
 509                 .code                   = BTN_EXTRA,
 510                 .gpio                   = 7,
 511                 .desc                   = "user",
 512                 .wakeup                 = 1,
 513         },
 514 };
 515
 516 static struct gpio_keys_platform_data gpio_key_info = {
 517         .buttons        = gpio_buttons,
 518         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 519 };
 520
 521 static struct platform_device keys_gpio = {
 522         .name   = "gpio-keys",
 523         .id     = -1,
 524         .dev    = {
 525                 .platform_data  = &gpio_key_info,
 526         },
 527 };
 528
 529 static void __init omap3_beagle_init_early(void)
 530 {
 531         omap2_init_common_infrastructure();
 532         omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
 533                                   mt46h32m32lf6_sdrc_params);
 534 }
 535
 536 static void __init omap3_beagle_init_irq(void)
 537 {
 538         omap_init_irq();
 539 #ifdef CONFIG_OMAP_32K_TIMER
 540         omap2_gp_clockevent_set_gptimer(12);
 541 #endif
 542 }
 543
 544 static struct platform_device *omap3_beagle_devices[] __initdata = {
 545         &leds_gpio,
 546         &keys_gpio,
 547 };
 548
 549 static void __init omap3beagle_flash_init(void)
 550 {
 551         u8 cs = 0;
 552         u8 nandcs = GPMC_CS_NUM + 1;
 553
 554         /* find out the chip-select on which NAND exists */
 555         while (cs < GPMC_CS_NUM) {
 556                 u32 ret = 0;
 557                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 558
 559                 if ((ret & 0xC00) == 0x800) {
 560                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 561                         if (nandcs > GPMC_CS_NUM)
 562                                 nandcs = cs;
 563                 }
 564                 cs++;
 565         }
 566
 567         if (nandcs > GPMC_CS_NUM) {
 568                 printk(KERN_INFO "NAND: Unable to find configuration "
 569                                  "in GPMC\n ");
 570                 return;
 571         }
 572
 573         if (nandcs < GPMC_CS_NUM) {
 574                 omap3beagle_nand_data.cs = nandcs;
 575
 576                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 577                 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
 578                         printk(KERN_ERR "Unable to register NAND device\n");
 579         }
 580 }
 581
 582 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 583
 584         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 585         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 586         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 587
 588         .phy_reset  = true,
 589         .reset_gpio_port[0]  = -EINVAL,
 590         .reset_gpio_port[1]  = 147,
 591         .reset_gpio_port[2]  = -EINVAL
 592 };
 593
 594 #ifdef CONFIG_OMAP_MUX
 595 static struct omap_board_mux board_mux[] __initdata = {
 596         { .reg_offset = OMAP_MUX_TERMINATOR },
 597 };
 598 #endif
 599
 600 static struct omap_musb_board_data musb_board_data = {
 601         .interface_type         = MUSB_INTERFACE_ULPI,
 602         .mode                   = MUSB_OTG,
 603         .power                  = 100,
 604 };
 605
 606 static void __init omap3_beagle_init(void)
 607 {
 608         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 609         omap3_beagle_init_rev();
 610         omap3_beagle_i2c_init();
 611         platform_add_devices(omap3_beagle_devices,
 612                         ARRAY_SIZE(omap3_beagle_devices));
 613         omap_display_init(&beagle_dss_data);
 614         omap_serial_init();
 615
 616         omap_mux_init_gpio(170, OMAP_PIN_INPUT);
 617         gpio_request(170, "DVI_nPD");
 618         /* REVISIT leave DVI powered down until it's needed ... */
 619         gpio_direction_output(170, true);
 620
 621         usb_musb_init(&musb_board_data);
 622         usb_ehci_init(&ehci_pdata);
 623         omap3beagle_flash_init();
 624
 625         /* Ensure SDRC pins are mux'd for self-refresh */
 626         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 627         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
 628
 629         beagle_display_init();
 630 }
 631
 632 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 633         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 634         .boot_params    = 0x80000100,
 635         .reserve        = omap_reserve,
 636         .map_io         = omap3_map_io,
 637         .init_early     = omap3_beagle_init_early,
 638         .init_irq       = omap3_beagle_init_irq,
 639         .init_machine   = omap3_beagle_init,
 640         .timer          = &omap_timer,
 641 MACHINE_END